| Alcazar de San Juan to Smolyan | 1,467.52 mi (2,361.74 km) |
| Alcazar de San Juan to Sofia | 1,395.28 mi (2,245.48 km) |
| Alcazar de San Juan to Sopot | 1,467.42 mi (2,361.58 km) |
| Alcazar de San Juan to Sozopol | 1,618.06 mi (2,604.02 km) |
| Alcazar de San Juan to Sredets | 1,592.82 mi (2,563.40 km) |
| Alcazar de San Juan to Stamboliyski | 1,457.18 mi (2,345.10 km) |
| Alcazar de San Juan to Stara Zagora | 1,513.56 mi (2,435.83 km) |
| Alcazar de San Juan to Svilengrad | 1,543.98 mi (2,484.79 km) |
| Alcazar de San Juan to Svishtov | 1,498.04 mi (2,410.87 km) |
| Alcazar de San Juan to Targovishte | 1,559.72 mi (2,510.13 km) |
| Alcazar de San Juan to Teteven | 1,442.85 mi (2,322.04 km) |
| Alcazar de San Juan to Troyan | 1,465.62 mi (2,358.68 km) |
| Alcazar de San Juan to Tryavna | 1,505.29 mi (2,422.52 km) |
| Alcazar de San Juan to Tutrakan | 1,561.89 mi (2,513.62 km) |
| Alcazar de San Juan to Varna | 1,626.87 mi (2,618.20 km) |
